FR2957151A1 - System for counting distribution of amount of measurable quantity between measurable quantity distribution terminal and e.g. electric car, has calculating unit determining counting error of counting unit relative to set of counting data - Google Patents

Abstract

The system has a transmission unit transmitting a terminal signal and a vehicle signal e.g. electric signal, to a computer center (C) to receive and process the terminal signal and vehicle signal. A calculating unit determines counting average error of a counting unit with respect to a set of counting data delivered by all or part of the counting unit of vehicles (V1-V3, V-M) from set of deviation of counting data. A distribution unit provides certain quantity of electric energy to the vehicle.

Description

1 DISTRIBUTION COUNTING SYSTEM OF MEASURABLE SIZE BETWEEN A TERMINAL AND A VEHICLE

TECHNICAL FIELD AND PRIOR ART The invention relates to a system for counting the distribution of a measurable quantity between a distribution terminal of the measurable quantity and a vehicle.

In the preferred embodiment of the invention described below, the measurable quantity is electrical energy and the vehicles are electric vehicles that operate using the electricity supplied to them by distribution terminals. electricity. More generally, however, the invention relates to any type of measurable quantity that can be distributed from a distribution terminal. The measurable quantity may thus be, for example, a set of digital data constituting music, video, information relating to a parking time of the vehicle, etc. The problem of measuring the consumption of electrical energy is a problem whose acuity will continue to grow in the years to come. To date, the European regulation specifies that the counting of the active electrical energy intended for a residential, commercial or industrial "light" use must be made by an approved meter satisfying the requirements of the annex MI-003 of the European directive 2004/22 / EC of 31 March 2004 on the 2 measuring instruments published in the Official Journal of the European Union on 30 April 2004. As far as electric vehicles are concerned, they are, to date, few. Studies on the development of these vehicles are currently underway. The fleet of electric vehicles, and in particular electric cars, is expected to increase significantly in the coming years.

The problem of measuring the electrical energy consumed by these electric vehicles will not fail to arise. The electrical energy distribution metering system of the invention makes it possible to respond accurately and inexpensively to this measurement problem. DISCLOSURE OF THE INVENTION Indeed, the invention relates to a metering system for distributing a measurable quantity of quantity between a measurable quantity distribution terminal which belongs to a set of terminals and a vehicle which belongs to a set of terminals. vehicles, in which: each terminal comprises terminal counting means able to count a measurable quantity of quantity delivered by the terminal to a vehicle and to deliver a terminal count data item which represents the quantity of measurable quantity delivered; terminal identification means which outputs data which identifies the terminal, terminal clock means adapted to output a terminal date datum which represents a date at which a measurable quantity quantity distribution takes place between the terminal and a vehicle, means for forming a terminal signal which comprises, for each quantity of measurable quantity delivered, the metering data of e terminal, the terminal identification data and the terminal date data, - each vehicle comprises vehicle counting means capable of counting a measurable quantity of quantity delivered to the vehicle by a terminal and delivering a metering data item. a vehicle which represents the quantity of measurable quantity delivered, vehicle identification means capable of delivering data which identifies the vehicle, vehicle clock means capable of delivering a vehicle date datum which represents a date on which a measurable quantity quantity distribution takes place between a terminal and the vehicle, means for forming a vehicle signal which comprises, for each measurable quantity of quantity delivered, the vehicle count data, the vehicle identification data. and the vehicle date data, - transmission means transmit each terminal signal and each vehicle signal to a terminal computing device adapted to receive and process the terminal signals and the vehicle signals it receives, the computing center comprising:

H> receiving means capable of outputting, by comparison of the terminal signals and received vehicle signals, a control signal which matches each terminal signal with the corresponding vehicle signal for the same measurable quantity quantity distribution , H> calculation means able to determine, for each pair of paired terminal signal and vehicle signal, a count difference data between the terminal count data and the vehicle count data, and H> calculation means able to determine, for each terminal, from a set of counting difference data, an average counting error of the terminal counting means with respect to a set of count data delivered by all or part of the vehicle counting means of the set of vehicles. The different calculation means of the computer center are made, for example, by a microprocessor, a computer or dedicated electronic circuits. According to another characteristic of the invention, at least one terminal of the set of terminals is a calibrated terminal in which the terminal counting means are calibrated counting means capable of delivering reference count data.

BRIEF DESCRIPTION OF THE DRAWINGS Other features and advantages of the invention will become apparent on reading a preferred embodiment with reference to the attached FIGS. FIG. 1 represents an example of a dispensing metering system. electrical energy according to the invention; FIG. 2 represents an electric vehicle connected to an electrical energy distribution terminal during an operation of distribution of electrical energy from the terminal to the vehicle; FIG. 3 represents a particular element of the electrical energy distribution metering system of the invention; FIG. 4 represents a first improvement of the particular element represented in FIG. 3; Figure 5 shows a second improvement of the particular element shown in Figure 3; FIG. 6 represents a third improvement of the particular element represented in FIG. 3; In all the figures, the same references designate the same elements.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS OF THE INVENTION An electric vehicle has a problem of autonomy that requires it to recharge its 6 batteries frequently. Charging is done by charging stations located in the public or private area. Simulations have shown that, for example, at least 1.4 charging points per electric vehicle are necessary to ensure good management of the energy supply of a fleet of electric vehicles. For a large fleet of electric vehicles, it is therefore necessary to have a park of charging stations also important. The system of the invention is particularly well suited to such a situation. FIG. 1 represents an example of an electric energy distribution metering system according to the invention. The counting system of the invention comprises a set of N electrical power distribution terminals bir b2, b bN, a set of M electric vehicles Vi, V2, ..., Vi, ..., VM and a center The number N of terminals is, for example, equal to 1.4 times the number M, as previously mentioned. The set of terminals bi is connected to the computing center C by a transmission network RT. FIG. 2 shows an electric vehicle Vi connected by a connecting cable K to an electric power distribution terminal b 2 during an electric power distribution operation. The bi electrical power distribution terminal comprises distribution means MD j capable of supplying an amount of electrical energy to the vehicle Vi, terminal counting means MCbi capable of counting the quantity of electrical energy supplied by the means of transmission. distribution MDj, terminal identification means which deliver a data Rbi which identifies the terminal, terminal clock means Hbi capable of delivering a terminal date data DHbi which represents a date on which an electrical energy distribution takes place, MFbi formation means of a terminal signal ni which characterizes a power distribution operation between the terminal and the vehicle and MEbi terminal transmission means which transmit this signal to the computing center C, via the RT transmission network. The terminal signal ni is, for example, an electrical signal of the Internet message type and the transmission network RT is the Internet network. The terminal signal ni comprises: - the terminal reference data Rbi which identifies the terminal, - a vehicle reference data Rvi which identifies the vehicle, - the date data DHbi, and - a quantity of electrical energy data. Ebj, Vi which represents the amount of electrical energy that has been counted by the terminal meter bi as that supplied to the vehicle Vi. Similarly, the electric vehicle Vi comprises means MAi capable of storing the electrical energy supplied by the distribution means MDb, vehicle counting means MCvi able to count the amount of electrical energy supplied to the vehicle, means for measuring vehicle identification which delivers the data Rvi which identifies the vehicle, vehicle clock means HVi capable of delivering a vehicle date data DHVi which represents a date on which an electric power distribution takes place, MFVi formation means of a vehicle signal Svi which characterizes an operation of distribution of electrical energy between the terminal and the vehicle, a storage memory MSi capable of recording the signals Svi formed by the signal forming means MFVi, a transmission circuit MEvi able to transmit the vehicle signals recorded in the memory MSi to the computing center C, via the network RT, and / or a pos the GSM modi able to directly transmit the vehicle signals delivered by the training means MFVi to the computing center C, via the GSM network.

The vehicle signal Svi is, for example, an electrical signal of the Internet message type carried by the Internet network. The vehicle signal Svi comprises: - the terminal reference data Rb], - the vehicle reference data Rvi, - the date data DHvi, and - a quantity of electrical energy amount EVi, bj which represents the quantity of electrical energy which has been counted by the counter of the vehicle Vi as being that supplied to it from the terminal bi. In a first embodiment of the invention, the vehicle signal Svi is stored in the storage memory MSi. The vehicle signal is then transmitted to the computing center C during a subsequent electric power distribution operation 9. The vehicle signal (referenced Svi / k in FIG. 2) then reaches the calculation center C, via the vehicle emission circuit MEvi, a wired connection of the cable K, the transmission circuit of the terminal which is connected to the vehicle and the RT network. In a second embodiment of the invention, the signal Svi delivered by the signal forming means MFVi is directly transmitted to the modi GSM station which is connected to the computing center C via the GSM network. The signal Svi then directly reaches the computing center C via the GSM network. The computing center C comprises means for processing the electrical or electromagnetic signals it receives from the terminals and the electric vehicles (see FIG. The processing means comprise reception means 1 and calculation means 2 and 3. The reception means 1 compare the reference data and the date data contained in the signals n1 and Svi in order to match each terminal signal with the corresponding vehicle signal for the same energy distribution operation. For the same energy distribution operation, the reference data Rbi and Rvi are strictly identical and the date data DHvi and DHbi are substantially identical. Date data is usually measured to the nearest second. The date data are, therefore, generally not strictly identical, since the counters can not perform time readings with such accurate timing. However, in the context of the invention, it is considered that the date data DHvi and DHbi are identical if, associated with respectively identical reference data, they are included in a time interval of limited duration, for example equal to 5 minutes. . The reception circuit 1 delivers a control signal k capable of identifying whether a terminal signal and a vehicle signal correspond to the same operation of distribution of electrical energy. Under the action of the control signal k, the computing means 2 then calculate, for each energy distribution operation, a counting difference data DEji which represents the difference between the quantity of electrical energy Ebj, Vi counted by the terminal counting means and the amount of electrical energy EVi, bj counted by the vehicle counting means. Next, the calculation means 3 calculate, from a set of counting difference data DEii calculated over a duration At, the average counting error EMi of the terminal j with respect to the set of counting data. from all or part of the vehicles of the set of electric vehicles.

The electrical energy metering system of the invention thus makes it possible to characterize the average counting gap EMi which exists between each terminal b of the set of terminals and all or part of the fleet of electric vehicles. According to a first refinement of the invention, the computing center C further comprises (see FIG. 4). comparison means 4 between the average error EMi and a threshold value S, and warning means 5 which deliver a warning signal Sad when the average error EMi reaches the threshold value S. Exceeding the threshold value found for the same vehicle and at least two different terminals indicates that it is the vehicle that is defective, while exceeding the threshold value for the same terminal and at least two different vehicles indicates that it is the counting of the terminal which is defective. It is then possible to detect terminals or vehicles considered as defective. Defective terminals or vehicles are then removed from the counting system.

FIG. 5 illustrates a computing center which corresponds to a second improvement of the counting system of the invention. According to the second improvement of the invention, among the N power distribution terminals, there are calibrated terminals in which the terminal counting means are calibrated counting means able to deliver reference count data, that is accurate metering data considered as accurate data of the amounts of electrical energy delivered to electric vehicles. A terminal bi is 12 then either a non-calibrated terminal ben or a calibrated terminal b e • The reception means 1 then comprise additional means capable of identifying whether a terminal bi is a non-calibrated terminal bin or a calibrated terminal bje. If it is identified that the counting data come from a calibrated terminal bje, the difference DEje / i calculated by the calculation means 2, is used to calculate, using calculation means 6, an error of AVi count of the vehicle Vi. The counting error AVi represents the systematic counting error of the vehicle counting means Vi. As soon as a counting error AVi of a vehicle Vi has been calculated, the latter is then used by the calculation means 3 to correct any new count data coming from the vehicle Vi. Due to the presence of calibrated power distribution terminals, it is then advantageously possible to refocus, over a given duration, all or part of all the metering data coming from the electric vehicles of the vehicle fleet towards data of counting close to the reference data. According to the second improvement of the invention, the counting means of the electric vehicles, as well as the counting means of the uncalibrated terminals can then be rudimentary and inexpensive counting means delivering an inaccurate information, substantially distant from a exact information. Such a counting system is globally inexpensive since it uses only a very small proportion of expensive elements, namely the calibrated terminals. In the embodiments of the invention described above, the computing center C keeps up to date the average counting error EMi of the counting means of each terminal bi with respect to the counting means of all or part of the park of electric vehicles. The information that is the basis of the processing carried out by the computing center C is constituted, for each electrical power distribution operation, the count raised by the terminal that delivers the electrical energy and the count taken by the electric vehicle who receives the energy. It thus clearly appears that, mutatis mutandis, the invention also relates to embodiments in which the computing center C keeps up to date the average counting error EMi of the counting means of each vehicle Vi relative to the counting means of FIG. all or part of all the electrical energy distribution terminals as well as embodiments in which the computing center C maintains both the average error EMi and the average error EMi. FIG. 6 thus illustrates the case where the computing center C keeps up to date the average counting error EMi of the counting means of each vehicle Vi with respect to the counting means of all or part of the set of distribution terminals. 'electric energy. According to this embodiment of the invention, the counting error AVi of a vehicle Vi is used to calculate the counting errors of all or part of the set of non-calibrated terminal counting means which have been in error. relationship with the vehicle Vi for distribution of electrical energy. Calculation means 3 'are used for this purpose.

In all the cases where the invention uses calibrated distribution terminals, the presence of these distribution terminals allows a refocusing, over a given duration, of all the counting data coming from all or part of the electric vehicles of the park of vehicles and / or all the metering data from all or part of the non-calibrated electrical power distribution terminals to metering data close to reference data.

In a particularly advantageous manner, it is then not necessary for the accuracy of the vehicle counters and / or the uncalibrated terminal meters to be large. Over a given period of time, for example a monthly duration, an accumulation of terminal and vehicle count data corresponding to the circulation of a vehicle then leads to establishing, for this vehicle, a sufficiently accurate counting information that can be used to calculate the electrical energy consumption of the vehicle over the period considered. In the preferred embodiment of the invention described above, the measurable quantity is electricity. As already mentioned above, the invention relates to any type of measurable magnitude. Accordingly, the invention also relates to the case where one or more measurable quantities are distributed, simultaneously or not, from the same distribution terminal to the same vehicle. Each measurable quantity must then be identified for what it is. When a quantity of measurable quantity is loaded by a vehicle, a code which characterizes the measurable quantity chosen is then exchanged between the vehicle and the terminal. The terminal signal and the vehicle signal accordingly contain each this code. 15 20 25

Claims (10)

REVENDICATIONS1. A metering system for distributing a measurable quantity of quantity between a distribution terminal (b) of the measurable quantity which belongs to a set of terminals and a vehicle (Vi) belonging to a set of vehicles, in which: - each terminal (b) comprises terminal counting means (MCbi) capable of counting a measurable quantity of quantity delivered by the terminal to a vehicle and outputting a terminal count data (Ebj, Vi) which represents the measurable quantity quantity delivered, terminal identification means which outputs data (Rbi) which identifies the terminal, terminal clock means (Hbi) adapted to output a terminal date datum (DHbi) which represents a date on which a measurable quantity quantity distribution takes place between the terminal and a vehicle, means for forming (MFb) a terminal signal (Sbi) which comprises, for each measurable quantity of quantity delivered, the metering data terminal, the terminal identification data and the terminal date data, - each vehicle (Vi) comprises vehicle counting means (MCvi) capable of counting a measurable quantity of quantity delivered to the vehicle by a terminal and to supplying vehicle counting data (EVi, bj) which represents the quantity of measurable quantity delivered, vehicle identification means capable of delivering data which identifies the vehicle (RVi), vehicle clock means ( HVi) adapted to output a vehicle date datum (DHVi) which represents a date at which a measurable quantity quantity distribution takes place between a terminal and the vehicle, a vehicle signal formation means (MFvi) ( Svi) which comprises, for each quantity of measurable quantity delivered, the vehicle count data (DHVi), the vehicle identification data (RVi) and the vehicle date data (DHVi), - transmission means sion (MEVi, MEbi, RT) transmit each terminal signal and each vehicle signal to a computing center (C) able to receive and process the terminal signals and the vehicle signals that it receives, the computing center comprising: H> receiving means (1) adapted to output, by comparison of the terminal signals and received vehicle signals, a control signal (k) which matches each terminal signal with the corresponding vehicle signal for a same measurable quantity quantity distribution, H> calculation means (2) able to determine, for each pair of paired terminal signal and vehicle signal, a count difference data (DEii) between the data of terminal count and the vehicle count data, and H> calculation means (3) able to determine, for each terminal, from a set of counting difference data, an average counting error (ME). ) terminal counting means with respect to a metering data set delivered by all or part of the vehicle counting means of the set of vehicles. 2. System according to claim 1, wherein the transmission means (MEVi, MEbi, RT) consist of: - terminal signal transmission means which comprise a terminal transmission circuit (MEb) and a transmission network (RT) to which the terminal transmission circuit is connected, and - vehicle signal transmission means which comprises, in series, a vehicle storage memory (MSi), a vehicle emission circuit (MEVi) a wire link (K) between the vehicle transmitting circuit and a terminal transmitting circuit (MEbi) and the transmitting network (RT) connected to the terminal transmitting circuit. 3. System according to claim 1, wherein the transmission means consist of: - terminal signal transmission means which comprise a terminal transmission circuit (MEb) and a transmission network (RT) which connects the circuit terminal transmission at the computing center (C), and - vehicle signal transmission means which comprise a GSM station connected to the computing center via the GSM network. 4. System according to any one of the preceding claims, in which the computing center (C) comprises comparison means (4) which compare the average counting error of the counting means of each terminal with a threshold value. (S) and warning means (5) which deliver an alert signal as soon as said mean error reaches the threshold value. 5. System according to any one of the preceding claims, wherein at least one terminal of the set of terminals is a calibrated terminal (bje) in which the terminal counting means are calibrated counting means capable of delivering data. reference count. 6. System according to claim 5, wherein the receiving means (1) comprise: additional means capable of identifying whether a terminal which has delivered a measurable quantity of quantity to a vehicle is a calibrated or uncalibrated terminal; means for calculating, if it is identified that a calibrated terminal has delivered a quantity of measurable quantity to a vehicle, a vehicle counting error (AVi) which translates the counting error of the vehicle counting means with respect to counting means of the calibrated terminal, and means for correcting for the vehicle counting error any subsequent counting data of the vehicle whose counting error has been calculated. The system of claim 5, wherein the receiving means (1) comprises: additional means for identifying whether a terminal which has delivered a measurable quantity of magnitude to a vehicle is a calibrated or uncalibrated terminal, means for calculating, if it is identified that a calibrated terminal has delivered a quantity of measurable quantity to a vehicle, a vehicle counting error (AVi) which translates the counting error of the vehicle counting means with respect to the counting means of the calibrated terminal, and - means for correcting, from the vehicle counting error, all or part of the uncalibrated terminal counting means which have been in relation with the vehicle for a control operation. measurable size distribution. 8. System according to any one of the preceding claims, wherein the communication network (RT) is the Internet network. 9. System according to any one of the preceding claims, wherein the measurable quantity is electricity and the vehicles are electric vehicles. A metering system for distributing a measurable quantity of quantity between a distribution terminal (b) of the measurable quantity belonging to a set of terminals and a vehicle (Vi) belonging to a set of vehicles, wherein: each terminal (b) comprises terminal counting means (MCb) capable of counting a measurable quantity of magnitude 21 delivered by the terminal to a vehicle and delivering a terminal count data item (Eb, Vi) which represents the quantity of measurable magnitude delivered, terminal identification means which outputs a data item (Rbi) which identifies the terminal, terminal clock means (Hbi) adapted to output a terminal date datum (DHbi) which represents a date to which a measurable quantity quantity distribution takes place between the terminal and a vehicle, means for forming (MFb) a terminal signal (Sbi) which comprises, for each measurable quantity of quantity output, the data of terminal count, the terminal identification data and the terminal date data, - each vehicle (Vi) comprises vehicle counting means (MCvi) capable of counting a measurable quantity of quantity delivered to the vehicle by a terminal and to provide a vehicle counting data item (EVi, bj) which represents the quantity of measurable quantity delivered, vehicle identification means capable of delivering data which identifies the vehicle (RVi), vehicle clock means ( HVi) adapted to output a vehicle date datum (DHVi) which represents a date at which a measurable quantity quantity distribution takes place between a terminal and the vehicle, a vehicle signal formation means (MFvi) ( Svi) which comprises, for each quantity of measurable quantity delivered, the vehicle count data (DHVi), the vehicle identification data (RVi) and the vehicle date data (DHVi), 22 - trailing means. nsmission (MEVi, MEbi, RT) transmit each terminal signal and each vehicle signal to a computing center (C) able to receive and process the terminal signals and the vehicle signals that it receives, the computing center comprising: H> receiving means (1) adapted to output, by comparison of the terminal signals and received vehicle signals, a control signal (k) which matches each terminal signal with the corresponding vehicle signal for a same measurable quantity quantity distribution, H> computing means (2) able to determine, for each pair of paired terminal signal and vehicle signal, a count difference data (AEii) between the data of terminal counting and the vehicle counting data, and H> calculating means (3) able to determine, for each vehicle, from a set of counting difference data, an average counting error (EMi ) vehicle counting means by ra to a set of count data delivered by all or part of the terminal counting means of the set of terminals.